Operating Manual SIGMA 2-16P page 34 of 75
04/2007
5.2.4.1 Carrier Systems
In order to ensure easy handling, even if vessels of various sizes are used, a
carrier system was developed.
• Load the opposite carriers with the same number of vessels and with the
same weights in order to avoid imbalance.
• If all of the compartments of a carrier are not used, the buckets must be
loaded evenly. Loading the edges of a bucket only is not permissible.
5.2.4.2 Tubes
• Load the tubes outside of the centrifuge. Liquids in the buckets or multiple
carriers cause corrosion.
• Fill the tubes carefully and arrange them according to their weight.
Imbalances result in the excessive wear of the bearings.
• In high-speed angle rotors, the vessels must be filled up to their useful
volume (= the volume stated for the vessel). If the vessels are only partially
filled, they will deform. This may result in leaks at the seals that may become
loose.
• When using glass tubes, please refer to the information provided by the
manufacturer concerning the maximum speed for glass tubes.
) Attention!
• Please observe the instructions on safety and hazards in chapter
2,
page
16!
5.2.5 Service Life of Rotors and Accessories
The rotors and accessories have a limited service life.
• Please perform regular checks (at least once per month) for safety reasons!
• Pay special attention to changes, such as corrosion, cracks, material
abrasion etc.
• After 10 years, they must be inspected by the manufacturer.
• After 50,000 cycles, the rotor must be scrapped for reasons of safety.
• If other data concerning the service life are engraved on the rotor or
bucket, these data shall apply accordingly!
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